Musannaf Ibn Abi Shaybah 9693 — Those who said: when one of you

Mujahid said: When Sayyiduna Ibn Umar (may Allah be pleased with them both) was invited to food while he was fasting, he would accept the invitation. When the cloth was spread and the food was on it, he would stretch out his hand towards the food and say: "Begin in the name of Allah." When the people began eating, he would withdraw his hand.