Imam Sha'bi and Imam Ibn Sirin (may Allah have mercy on them) narrated that when Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) would narrate any hadith from the Messenger of Allah (peace and blessings be upon him) regarding the days, his face would turn red and he would say: «هكذا أو نحوه، هكذا أونحوه» (that is, in this way or with similar meaning the Prophet said).