Musannaf Ibn Abi Shaybah 2460 — Those who raised their hands when

Muharib bin Dithar said: I saw Sayyiduna Ibn Umar (may Allah be pleased with them both) raising his hands when going into bowing and prostration. I asked him the reason for it, and he said: "When the Prophet (peace and blessings be upon him) stood up from the two rak'ahs, he would also raise his hands."