It is narrated from Sayyiduna Abdullah bin Rawahah (may Allah be pleased with him) that he returned home from a journey suddenly at night. He saw someone sleeping beside his wife, and (out of jealousy) he took up his sword. His wife immediately said: (Stop!) This is so-and-so, a woman who was combing my hair. Then he came to the Prophet (peace and blessings be upon him) and mentioned this incident, and the Messenger of Allah (peace and blessings be upon him) said: "Do not come to your families suddenly at night (so that they can prepare)." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.