This hadith provides evidence that the night prayer is not obligatory. Had it been obligatory, he would not have contented himself with saying this much to one who abandoned it; rather, he would have censured him most severely. (1)
Ali ibn Abī Tālib reported that the Messenger of Allah, may Allah bless him and grant him peace, came at night to him and to Fātimah, the Prophet’s daughter, and asked, “Will you not pray?” I replied, “O Messenger of Allah, our souls are in Allah’s hand. If He wills to awaken us, He will awaken us.” When I said that, he turned away without saying anything further to me. Then I heard him, as he was leaving, striking his thigh and saying, “Yet man is more prone to dispute than anything else.” Agreed upon. (2)
I say: Had the night prayer been obligatory, he would not have accepted that statement as an excuse. Allah knows best. (3)
Aisha, Mother of the Believers, may Allah be pleased with her, reported that the Messenger of Allah, may Allah bless him and grant him peace, prayed in the mosque one night, and some people followed his prayer. He prayed there again the following night, and the number of people increased. They then gathered on the third or fourth night, but the Messenger of Allah, may Allah bless him and grant him peace, did not come out to them. The next morning, he said, “I saw what you did, and nothing prevented me from coming out to you except that I feared it might be made obligatory upon you.” This occurred during Ramadan. Agreed upon. (4)