To make the Heart Tender (Ar-Riqaq)
وَزَادَ ابْنُ أَبِي عَدِيٍّ عَنْ شُعْبَةَ، عَنْ مَعْبَدِ بْنِ خَالِدٍ، عَنْ حَارِثَةَ، سَمِعَ النَّبِيَّ صلى الله عليه وسلم قَوْلَهُ حَوْضُهُ مَا بَيْنَ صَنْعَاءَ وَالْمَدِينَةِ. فَقَالَ لَهُ الْمُسْتَوْرِدُ أَلَمْ تَسْمَعْهُ قَالَ الأَوَانِي. قَالَ لاَ. قَالَ الْمُسْتَوْرِدُ تُرَى فِيهِ الآنِيَةُ مِثْلَ الْكَوَاكِبِ.Haritha said that he heard the Prophet saying that his Lake-Fount would be as large as the distance between Sana' and Medina. Al- Mustaurid said to Haritha, "Didn't you hear him talking about the vessels?" He said, "No." Al- Mustaurid said, "The vessels are seen in it as (numberless as) the stars
From Sahih al-Bukhari, whose reports the scholars accept as authentic.