Shaykh al-’Allāmah Muḥammad Amān al-Jāmi (d. 1416 rahimahullāh) stated:

“I advise the youth who have not yet matured (in their Islamic knowledge and understanding), that they refrain from disputing with the Sufīs and the Ash’arīs, because if you dispute with them and they expose their doubts upon you and you are overwhelmed/defeated (and lost for words), this is regarded as a defeat for the Salafīs.”

Source: (Qurrat ‘Uyūn al-Muwaḥḥidīn 36)