Mukhtasar Bukhari (Abridged) 95 — Teaching at night is allowed

Umm al-Mu’minin Umm Salamah (may Allah be pleased with her) says that one night the Prophet Muhammad (peace and blessings be upon him) woke up from sleep and said, “Glory be to Allah! How many trials have been sent down tonight and how many treasures have been opened! (O people!) Wake up the women sleeping in these rooms (so that they may worship), for there are many who are clothed in this world who will be naked in the Hereafter (due to lack of good deeds).”