Chapter on the Manner of Prayer, Its Description and What is Obligatory and Recommended

Al-Husayn ibn Muhammad from Mu'alla from Al-Washsha' from Hammad ibn Uthman from Sa'id, the seller of Al-Sabiri (a type of delicate cloth), who said: I said to Abu Abdillah عليه السلام, peace be upon him: “Should a man force himself to weep during the prayer?” Imam عليه السلام said: "Excellent, excellent (is such action); even if it is as little as the size of a fly's head."