Musannaf Ibn Abi Shaybah 9198 — Hastening to break the fast and what

Yazid said: Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) would say to Ibn al-Nabbah, "Has the sun set?" He would reply, "Do not hurry." He would ask again, "Has the sun set?" and he would say, "Do not hurry." Sayyiduna Ali (may Allah be pleased with him) would ask again, "Has the sun set?" When Ibn al-Nabbah said that the sun had set, he broke his fast, then dismounted and prayed.