Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:26744ʿAffān > Ḥammād b. Salamah > Abūḥamzah > Abū Ṣāliḥ > Um Salamah Raʾat Nasīb Lahā Yanfukh Idhā Arād > Yasjud

[Machine] "Um Salama saw her relative blowing on his face when he wanted to prostrate, so she said to him, 'Do not blow, for indeed the Messenger of Allah ﷺ said to a boy named Rabah, 'Train and cultivate your face, O Rabah.'  

أحمد:٢٦٧٤٤حَدَّثَنَا عَفَّانُ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ قَالَ حَدَّثَنَا أَبُوحَمْزَةَ عَنْ أَبِي صَالِحٍ

أَنَّ أُمَّ سَلَمَةَ رَأَتْ نَسِيبًا لَهَا يَنْفُخُ إِذَا أَرَادَ أَنْ يَسْجُدَ فَقَالَتْ لَا تَنْفُخْ فَإِنَّ رَسُولَ اللهِ ﷺ قَالَ لِغُلَامٍ لَنَا يُقَالُ لَهُ رَبَاحٌ تَرِّبْ وَجْهَكَ يَا رَبَاحُ