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

Imam Ibn Al-Qayyim, may Allah have mercy upon him, said:

Muhammad’s, peace and blessings of Allah be upon him, Ummah is not in need of anyone after him; rather the only need they have is someone to convey what he came with (conveyed).

Muhammad’s message is comprehensive, universal and preserved. This universality, comprehensiveness and preservation is not limited to (any time, place or situation), rather it is comprehensive for those to whom he was sent (all the nations of world and the Jinn) and also regarding everything that is needed in the fundamental and subsidiary issues of the religion.

Muhammad’s message is sufficient, all embracing and universal- nothing else is needed besides it. It has not isolated any truth needed by his Ummah in their sciences and deeds.

The Messenger of Allah did not leave this world until he taught his Ummah everything. He even taught them the etiquettes of using the toilet, the etiquettes of sexual relations, sleep and after waking up, eating, drinking and travel. He  taught them the etiquettes of speech and silence, the etiquettes of keeping company with the people and seclusion. He taught them about illness, good health, poverty and wealth – all matters related to life and death.

He described Allah’s throne, the angels, the jinn, the hell fire and the day of judgement in such a manner as if one has seen them with the naked eye. He informed them about their Lord and His Perfect Names and Attributes, and that Allah alone is their true object of worship. He informed them about the Prophets of old and their nations – the events that took place between them and their nations – in such a manner as if one was present at that time. He informed them about all the means to good and the paths of evil- in general and in detail- which no other prophet informed his nation.

He informed them about death and what will take place in the grave – either bliss or punishment. He taught them the evidences and proofs of Tawhid,  Prophet hood and the Afterlife, and he refuted all the sects of disbelief and misguidance.

He taught them war strategies- how to confront the enemy, the way to achieve victory and conquests. If only they knew and understood these matters in the correct manner, they would not be overcome by their enemy.

He informed them about the plots of Iblees and the ways through which he approaches them, and the ways to repel those plots and plans. He informe them about the soul- its characteristics and faults- in such a manner that they are not in need of anyone else to tell them about it. He taught them how to live their daily lives and had they acknowledged and acted upon this, their worldly affairs would be accomplished. He brought them all the means of success in this life and the next, and they do not need anyone besides him. So how can it be said that the path of Muhammad is in need of something else outside of it. The reason for such a claim is due to the weak and little understanding of a person. Allah, The Most High, said:

أَوَلَمْ يَكْفِهِمْ أَنَّا أَنزَلْنَا عَلَيْكَ الْكِتَابَ يُتْلَىٰ عَلَيْهِمْ ۚ إِنَّ فِي ذَٰلِكَ لَرَحْمَةً وَذِكْرَىٰ لِقَوْمٍ يُؤْمِنُونَ

Is it not sufficient for them that We have sent down to you the Book (the Qur’an) which is recited to them? Verily, herein is mercy and a reminder (or an admonition) for a people who believe.

Allah, The Most High, said:

وَنَزَّلْنَا عَلَيْكَ الْكِتَابَ تِبْيَانًا لِّكُلِّ شَيْءٍ وَهُدًى وَرَحْمَةً وَبُشْرَىٰ لِلْمُسْلِمِينَ

And We have sent down to you the Book (the Qur’an) as an exposition of everything, a guidance, a mercy, and glad tidings for those who have submitted themselves (to Allah as Muslims).

Allah, The Most High, said:

يَا أَيُّهَا النَّاسُ قَدْ جَاءَتْكُم مَّوْعِظَةٌ مِّن رَّبِّكُمْ وَشِفَاءٌ لِّمَا فِي الصُّدُورِ وَهُدًى وَرَحْمَةٌ لِّلْمُؤْمِنِينَ

O mankind! There has come to you a good advice from your Lord (i.e. the Qur’an, ordering all that is good and forbidding all that is evil), and a healing for that (disease of ignorance, doubt, hypocrisy and differences, etc.) in your breasts, – a guidance and a mercy (explaining lawful and unlawful things, etc.) for the believers.

An Excerpt from I’lam Al-Muwaqqi’een 4/375-377