Musannaf Ibn Abi Shaybah 9174 — Those who considered it recommended

Sayyiduna Zayd bin Thabit (may Allah be pleased with him) said: We ate the pre-dawn meal with the Messenger of Allah (peace and blessings be upon him), then we stood up for the prayer. He was asked, "How long was the gap between the pre-dawn meal and the prayer?" He said, "About as long as it takes to recite fifty verses."