فَقَدْ رَوَى اَلْحَسَنُ بْنُ مُوسَى بْنِ جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ عَنْ أُمِّهِ وَ أُمِّ أَحْمَدَ بْنِ مُوسَى عَلَيْهِ اَلسَّلاَمُ قَالَتَا: كُنَّا مَعَ أَبِي اَلْحَسَنِ مُوسَى بْنِ جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ فِي اَلْبَادِيَةِ وَ نَحْنُ نُرِيدُ بَغْدَادَ فَقَالَ لَنَا يَوْمَ اَلْخَمِيسِ «اِغْتَسِلاَ اَلْيَوْمَ لِغَدٍ يَوْمِ اَلْجُمُعَةِ فَإِنَّ اَلْمَاءَ غَداً بِهَا قَلِيلٌ» قَالَتَا فَاغْتَسَلْنَا يَوْمَ اَلْخَمِيسِ لِلْجُمُعَةِ.
Al-Hasan ibn Musa ibn Jafar narrated from his mother and Umm Ahmad bint Musa (a.s) who said: "We were both with Imam Musa ibn Jafar Al-Kadhim (a.s) in the desert while we were heading to Baghdad, and on Thursday He (a.s) said to us, 'Perform ghusl today for tomorrow, Jumu’ah, because water will be scarce tomorrow.' They said: So we performed ghusl on Thursday for Jumu’ah.