Sahih al-Bukhari 6202
Sahih al-Bukhari · Book 78: Good Manners and Form (Al-Adab) · Whoever, while calling a friend, omits a letter from his name
Narrated Anas:
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ ، حَدَّثَنَا وُهَيْبٌ ، حَدَّثَنَا أَيُّوبُ ، عَنْ أَبِي قِلاَبَةَ ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ كَانَتْ أُمُّ سُلَيْمٍ فِي الثَّقَلِ وَأَنْجَشَةُ غُلاَمُ النَّبِيِّ صلى الله عليه وسلم يَسُوقُ بِهِنَّ، فَقَالَ النَّبِيُّ صلى الله عليه وسلم " يَا أَنْجَشَ، رُوَيْدَكَ، سَوْقَكَ بِالْقَوَارِيرِ " .
Once Um Sulaim was (with the women who were) in charge of the luggage on a journey, and Anjashah, the slave of the Prophet, was driving their camels (very fast). The Prophet (ﷺ) said, "O Anjash! Drive slowly (the camels) with the glass vessels (i.e., ladies).