Musannaf Ibn Abi Shaybah 20591 — What is mentioned on the virtue

A son of Sayyiduna Abdullah bin Salam (may Allah be pleased with him) said: Once I had prepared for jihad and was about to set out, when my father said to me: "Wait, O my son!" I said: "Could you not have stopped me earlier, before I had prepared and spent money on it?" He said: "I wanted the reward of a mujahid to be written for you." Pointing towards Sham, he said: "A calamity is going to come from that direction. If I live to see it, you will see what I do in it; and if I do not live to see it, then you rush towards it."