Musannaf Ibn Abi Shaybah 16051 — A man who begins a voluntary tawaf

Abd al-Malik narrates from a shaykh of Makkah, who said: I saw Sayyiduna Ibn Umar (may Allah be pleased with them both) performing tawaf, and the time for prayer came. He joined the prayer, and when the prayer was completed he completed that same tawaf.