It is narrated from Sayyiduna Abu Qatadah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) passed by Sayyiduna Abu Bakr (may Allah be pleased with him) while he was praying and keeping his voice low, and he (peace and blessings be upon him) passed by Sayyiduna Umar (may Allah be pleased with him) while he was praying and raising his voice. Then, when morning came and the two of them came to the Prophet (peace and blessings be upon him), he (peace and blessings be upon him) said to Sayyiduna Abu Bakr (may Allah be pleased with him): "O Abu Bakr! I passed by you while you were keeping your voice very low in prayer?" He said: "(O Messenger of Allah, peace and blessings be upon him!) I made the One with whom I was conversing in intimate prayer hear me." He (peace and blessings be upon him) said: "Raise your voice a little."
And he (peace and blessings be upon him) said to Sayyiduna Umar (may Allah be pleased with him): "O Umar! I passed by you while you were raising your voice in prayer?" He said: "O Messenger of Allah (peace and blessings be upon him)! I feared Satan." So he (peace and blessings be upon him) said: "Lower your voice a little."
No one narrated this hadith from Hammad bin Salamah (may Allah have mercy on him) 'mawsul' (with a connected chain) except Yahya bin Ishaq (may Allah have mercy on him), and this hadith is narrated from Sayyiduna Abu Qatadah (may Allah be pleased with him) only with this chain.
Hadith Referenceالمعجم الأوسط / باب الميم / 7219
Hadith Gradingمحدثین:الصحيح مرسل
Hadith Takhrij«قال أبو حاتم الرازي: الصحيح عن عبد الله بن رباح أن النبي صلى الله عليه وسلم مرسل أخطأ فيه السالحيني «علل الحديث، ج 2، ص 223»» «أخرجه ابن خزيمة فى «صحيحه» برقم: 1161، وابن حبان فى «صحيحه» برقم: 733، والحاكم فى «المستدرك» برقم: 1172، وأبو داود فى «سننه» برقم: 1329، والترمذي فى «جامعه» برقم: 447، والبيهقي فى «السنن الكبرى» برقم: 4775، 4776»