Hadith 17:229
Hafs ibn Ghiyath narrated to us, from Layth, from Abu Hubayrah Yahya ibn 'Abbad, who said: The Muslim is the mirror of his brother. So if he takes something from him, let him show it to him.
حدثنا حفص بن غياث عن ليث عن أبي هبيرة يحيى بن عباد قال المسلم مرآة أخيه فإذا أخذ عنه شيئا فليره