Ubaidullah bin Abdullah narrates: He saw Sayyiduna Usama bin Zaid (may Allah be pleased with him) performing prayer near the blessed grave of the Prophet (peace and blessings be upon him). Marwan bin Hakam came and asked, "Are you performing prayer facing the grave?" Sayyiduna Usama bin Zaid (may Allah be pleased with him) replied, "I love the Prophet (peace and blessings be upon him)." Marwan said something bad to him and then turned away and left. Sayyiduna Usama bin Zaid (may Allah be pleased with him) finished his prayer and said, "You have hurt me. I heard the Prophet (peace and blessings be upon him) say: 'Indeed, Allah dislikes the one who uses obscene language and foul speech.' And you are one who uses obscene language and foul speech."