Musannaf Ibn Abi Shaybah 31703 — The supplication when something

Mujahid said that Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: "Allah has some additional angels besides the guardian angels, who record every leaf that falls from a tree. So when any one of you is struck by lameness on a journey, let him call out these words: 'Help, O servants of Allah, may Allah have mercy on you.'"