In The Name of Allah, The Most Merciful, The Bestower of Mercy.

Al-Allamah Muqbil Bin Hadi Al-Wadi’i, may Allah have mercy upon him,stated: Allah, Glorified and Exalted be He, said:

وَعَجِبُوٓاْ أَن جَآءَهُم مُّنذِرٌ۬ مِّنۡہُمۡ‌ۖ وَقَالَ ٱلۡكَـٰفِرُونَ هَـٰذَا سَـٰحِرٌ۬ كَذَّابٌ
أَجَعَلَ ٱلۡأَلِهَةَ إِلَـٰهً۬ا وَٲحِدًا‌ۖ إِنَّ هَـٰذَا لَشَىۡءٌ عُجَابٌ۬
وَٱنطَلَقَ ٱلۡمَلَأُ مِنۡہُمۡ أَنِ ٱمۡشُواْ وَٱصۡبِرُواْ عَلَىٰٓ ءَالِهَتِكُمۡ‌ۖ إِنَّ هَـٰذَا لَشَىۡءٌ۬ يُرَادُ
مَا سَمِعۡنَا بِہَـٰذَا فِى ٱلۡمِلَّةِ ٱلۡأَخِرَةِ إِنۡ هَـٰذَآ إِلَّا ٱخۡتِلَـٰقٌ
أَءُنزِلَ عَلَيۡهِ ٱلذِّكۡرُ مِنۢ بَيۡنِنَا‌ۚ بَلۡ هُمۡ فِى شَكٍّ۬ مِّن ذِكۡرِى‌ۖ بَل لَّمَّا يَذُوقُواْ عَذَابِ

And they wonder that a warner (Prophet Muhammad) has come to them from among themselves! And the disbelievers say, “This (Prophet Muhammad) is a sorcerer, a liar. Has he made the aaliha (gods) (all) into One Ilaah (God – Allah). Verily, this is a curious thing!” And the leaders among them went about (saying), “Go on and remain constant to your aaliha (gods)! Verily, this is a thing designed (against you)! We have not heard (the like) of this among the people of these later days. This is nothing but an invention! Has the Reminder been sent down to him (alone) from among us?” Nay! But they are in doubt about My Reminder (this Qur’an)! Nay, but they have not tasted (My) Torment! [Surah Sa’d. 4-8]

So, you say to the Rafidah, “Indeed, it is shirk to invoke other than Allah with regards to seeking benefit and protection from harm in a matter which none can (fulfil) besides Allah. It is not permissible to invoke Ali Ibn Abee Taalib [may Allah be pleased with him] or other than him amongst the dead [may Allah have mercy upon them] because Allah [The Mighty and Majestic] said:

وَٱلَّذِينَ تَدۡعُونَ مِن دُونِهِۦ مَا يَمۡلِكُونَ مِن قِطۡمِيرٍ
إِن تَدۡعُوهُمۡ لَا يَسۡمَعُواْ دُعَآءَكُمۡ وَلَوۡ سَمِعُواْ مَا ٱسۡتَجَابُواْ لَكُمۡۖ وَيَوۡمَ ٱلۡقِيَـٰمَةِ يَكۡفُرُونَ بِشِرۡڪِكُمۡۚ وَلَا يُنَبِّئُكَ مِثۡلُ خَبِيرٍ۬

And those, whom you invoke or call upon instead of Him, own not even a Qitmeer (the thin membrane over the date stone). If you invoke (or call upon) them, they hear not your call, and if (in case) they were to hear, they could not grant it (your request) to you. And on the Day of Resurrection, they will disown your worshipping them. And none can inform you (O Muhammad) like Him Who is the All-Knower (of each and everything). O mankind! it is you who stand in need of Allah, but Allah is Rich (Free of all wants and needs), Worthy of all praise. [Surah Fatir. 13-14]

And Allah said:

وَمَنۡ أَضَلُّ مِمَّن يَدۡعُواْ مِن دُونِ ٱللَّهِ مَن لَّا يَسۡتَجِيبُ لَهُ ۥۤ إِلَىٰ يَوۡمِ ٱلۡقِيَـٰمَةِ وَهُمۡ عَن دُعَآٮِٕهِمۡ غَـٰفِلُونَ
وَإِذَا حُشِرَ ٱلنَّاسُ كَانُواْ لَهُمۡ أَعۡدَآءً۬ وَكَانُواْ بِعِبَادَتِہِمۡ كَـٰفِرِينَ

And who is more astray than one who calls (invokes) besides Allah, such as will not answer him till the Day of Resurrection, and who are (even) unaware of their calls (invocations) to them? And when mankind are gathered (on the Day of Resurrection), they (false deities) will become enemies for them and will deny their worshipping.’ [Surah Al-Ahqaf. 5-6]

And Allah said:
وَمَن يَدۡعُ مَعَ ٱللَّهِ إِلَـٰهًا ءَاخَرَ لَا بُرۡهَـٰنَ لَهُ ۥ بِهِۦ فَإِنَّمَا حِسَابُهُ ۥ عِندَ رَبِّهِۦۤ‌ۚ إِنَّهُ ۥ لَا يُفۡلِحُ ٱلۡكَـٰفِرُونَ

And whoever invokes (or worships), besides Allah, any other ilaah (god), of whom he has no proof, then his reckoning is only with his Lord. Surely! Al-Kaafiroon (the disbelievers in Allah and in the Oneness of Allah, polytheists, pagans, idolaters, etc.) will not be successful.’ [Surah Al-Muminoon. 117]

And if you say, “Indeed others have joined them (i.e. the Mushrikoon) in this (affair”, so I say, “Whoever joins them in this (affair of shirk) is similar to them”. Read

https://www.manhaj.com/manhaj/articles/xyjjc-takfir-and-the-excuse-of-ignorance-shaykh-saalih-al-fawzaan-5—on-those-who-worship-the-righteous.cfm

Allah said:
وَلَا تَدۡعُ مِن دُونِ ٱللَّهِ مَا لَا يَنفَعُكَ وَلَا يَضُرُّكَ‌ۖ فَإِن فَعَلۡتَ فَإِنَّكَ إِذً۬ا مِّنَ ٱلظَّـٰلِمِينَ
وَإِن يَمۡسَسۡكَ ٱللَّهُ بِضُرٍّ۬ فَلَا ڪَاشِفَ لَهُ ۥۤ إِلَّا هُوَ‌ۖ وَإِن يُرِدۡكَ بِخَيۡرٍ۬ فَلَا رَآدَّ لِفَضۡلِهِۦ‌ۚ يُصِيبُ بِهِۦ مَن يَشَآءُ مِنۡ عِبَادِهِۦ‌ۚ وَهُوَ ٱلۡغَفُورُ ٱلرَّحِيمُ

And invoke not besides Allah, any that will neither profit you, nor hurt you, but if (in case) you did so, you shall certainly be one of the Zaalimoon (polytheists and wrongdoers). And if Allah touches you with hurt, there is none who can remove it but He; and if He intends any good for you, there is none who can repel His Favour which He causes it to reach whomsoever of His slaves He will. And He is the Oft-Forgiving, Most Merciful.’ [Surah Yunus. 106-107]

When you convey these verses and what is similar to them to the (Rawaafid), and then say to them, “Indeed, is it permissible to call upon the dead and seek deliverance and rescue from them?” They (say), “You are a Wahhaabi. You hate the family of the Prophet [peace and blessings of Allah be upon him]”. This is the same regarding the extreme Soofees when you say, “Indeed, the Awliyaa can neither benefit nor harm”, they say, “You hate the Awliyaa”. Indeed, mighty is the statement that comes out of the mouths of these two sects; they utter nothing but a lie!

An Excerpt from Ilhaadul Khumeini Fee Ardil Haramayn. Pages 206-207