On the authority of Rabīʿah ibn Abī ʿAbd al-Raḥmān, and on the authority of more than one of their scholars regarding this matter: ʿUmar said to Abū Mūsā, "Indeed, I did not accuse you, but I feared that people would fabricate sayings attributed to the Messenger of Allah, may Allah bless him and grant him peace."(1)

5185 — Hishām Abū Marwān and Muḥammad ibn al-Muthannā narrated to us — with the same meaning; Muḥammad ibn al-Muthannā said: al-Walīd ibn Muslim narrated to us, al-Awzāʿī narrated to us, saying: I heard Yaḥyā ibn Abī Kathīr say: Muḥammad ibn ʿAbd al-Raḥmān ibn Asʿad ibn Zurārah narrated to me, on the authority of Qays ibn Saʿd, who said: The Messenger of Allah, may Allah bless him and grant him peace, visited us in our home and said, "Peace be upon you and the mercy of Allah." Qays said: Saʿd returned the greeting in a faint voice. Qays said: I said, "Will you not give permission to the Messenger of Allah, may Allah bless him and grant him peace?" He said, "Leave him, so that he may increase his greetings upon us." Then the Messenger of Allah, may Allah bless him and grant him peace, said, "Peace be upon you and the mercy of Allah," and Saʿd returned the greeting in a faint voice. Then the Messenger of Allah, may Allah bless him and grant him peace, said again, "Peace be upon you and the mercy of Allah," and then the Messenger of Allah, may Allah bless him and grant him peace, turned back. Saʿd followed him and said, "O Messenger of Allah, may Allah bless him and grant him peace, I was hearing your greeting and returning it in a faint voice, so that you would increase your greetings upon us." He said: So the Messenger of Allah, may Allah bless him and grant him peace, turned back with him. Saʿd ordered a bath to be prepared for him, and he bathed. Then he handed him a cloak dyed with saffron or wars, and he wrapped himself in it. Then the Messenger of Allah, may Allah bless him and grant him peace, raised his hands, saying, "O Allah, bestow Your blessings and mercy upon the family of Saʿd ibn ʿUbādah." He said: Then the Messenger of Allah, may Allah bless him and grant him peace, partook of the food. When he wished to leave, Saʿd brought him a donkey that had been--------------------------------------------
(1) It is in "al-Muwaṭṭaʾ" 2/964. Abū ʿUmar ibn ʿAbd al-Barr said in "al-Tamhīd" 3/190: The ḥadīth of Rabīʿah is disconnected, but it is connected through good chains of transmission. See the rest of his discussion therein.
And see what has preceded under number (5180).