To make the Heart Tender (Ar-Riqaq)
حَدَّثَنَا سَعِيدُ بْنُ عُفَيْرٍ، قَالَ حَدَّثَنِي ابْنُ وَهْبٍ، عَنْ يُونُسَ، قَالَ ابْنُ شِهَابٍ حَدَّثَنِي أَنَسُ بْنُ مَالِكٍ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ (إِنَّ قَدْرَ حَوْضِي كَمَا بَيْنَ أَيْلَةَ وَصَنْعَاءَ مِنَ الْيَمَنِ، وَإِنَّ فِيهِ مِنَ الأَبَارِيقِ كَعَدَدِ نُجُومِ السَّمَاءِ).Narrated Anas bin Malik:Allah's Messenger (ﷺ) said, "The width of my Lake-Fount is equal to the distance between Aila (a town in Sham) and Sana' (the capital of Yemen) and it has as many (numerous) jugs as the number of stars of the sky
From Sahih al-Bukhari, whose reports the scholars accept as authentic.