It was narrated that Abu Sallam Al-Habashi said:
“Umar bin ‘Abdul-‘Aziz sent for me and I came to him upon the riding animal prepared for swift mail delivery. When I came to him, he said: ‘We have caused you some trouble O Abu Sallam.’ He said: ‘Yes, by Allah, O Commander of the Believers!’ He said: ‘By Allah, we did not want to cause you any hardship, but there is a Hadith which I have heard that you narrate from Thawban, the freed slave of the Messenger of Allah ﷺ, concerning the Cistern, and I wanted to hear it directly from you.’ He said: “I said: ‘Thawban, the freed slave of the Messenger of Allah ﷺ, told me that the Messenger of Allah ﷺ said: “My Cistern is (wider than) the distance between Ailah and ‘Aden. It is whiter than milk and sweeter than honey, and its cups are as many as the stars in the sky. Whoever drinks from it will never feel thirst again. The first ones who come to drink from it will be the poor Muhajirin, with dirty clothes and disheveled hair, who do not marry refined women and for whom no doors are opened.” ‘Umar wept until his beard became wet, then he said: ‘But I have married refined women and doors have been opened for me. Certainly I will not wash the clothes that are on my body until they become dirt, and I will not comb my hair until it becomes disheveled.’”

حَدَّثَنَا مَحْمُودُ بْنُ خَالِدٍ الدِّمَشْقِيُّ، حَدَّثَنَا مَرْوَانُ بْنُ مُحَمَّدٍ، حَدَّثَنَا مُحَمَّدُ بْنُ مُهَاجِرٍ، حَدَّثَنِي الْعَبَّاسُ بْنُ سَالِمٍ الدِّمَشْقِيُّ، نُبِّئْتُ عَنْ أَبِي سَلاَّمٍ الْحَبَشِيِّ، قَالَ بَعَثَ إِلَىَّ عُمَرُ بْنُ عَبْدِ الْعَزِيزِ فَأَتَيْتُهُ عَلَى بَرِيدٍ فَلَمَّا قَدِمْتُ عَلَيْهِ قَالَ لَقَدْ شَقَقْنَا عَلَيْكَ يَا أَبَا سَلاَّمٍ فِي مَرْكَبِكَ . قَالَ أَجَلْ وَاللَّهِ يَا أَمِيرَ الْمُؤْمِنِينَ . قَالَ وَاللَّهِ مَا أَرَدْتُ الْمَشَقَّةَ عَلَيْكَ وَلَكِنْ حَدِيثٌ بَلَغَنِي أَنَّكَ تُحَدِّثُ بِهِ عَنْ ثَوْبَانَ مَوْلَى رَسُولِ اللَّهِ ـ ﷺ ـ فِي الْحَوْضِ فَأَحْبَبْتُ أَنْ تُشَافِهَنِي بِهِ . قَالَ فَقُلْتُ حَدَّثَنِي ثَوْبَانُ مَوْلَى رَسُولِ اللَّهِ ـ ﷺ ـ أَنَّ رَسُولَ اللَّهِ ـ ﷺ ـ قَالَ " إِنَّ حَوْضِي مَا بَيْنَ عَدَنَ إِلَى أَيْلَةَ أَشَدُّ بَيَاضًا مِنَ اللَّبَنِ وَأَحْلَى مِنَ الْعَسَلِ أَوَانِيهِ كَعَدَدِ نُجُومِ السَّمَاءِ مَنْ شَرِبَ مِنْهُ شَرْبَةً لَمْ يَظْمَأْ بَعْدَهَا أَبَدًا وَأَوَّلُ مَنْ يَرِدُهُ عَلَىَّ فُقَرَاءُ الْمُهَاجِرِينَ الدُّنْسُ ثِيَابًا وَالشُّعْثُ رُءُوسًا الَّذِينَ لاَ يَنْكِحُونَ الْمُنَعَّمَاتِ وَلاَ يُفْتَحُ لَهُمُ السُّدَدُ " . قَالَ فَبَكَى عُمَرُ حَتَّى اخْضَلَّتْ لِحْيَتُهُ ثُمَّ قَالَ لَكِنِّي قَدْ نَكَحْتُ الْمُنَعَّمَاتِ وَفُتِحَتْ لِيَ السُّدَدُ لاَ جَرَمَ أَنِّي لاَ أَغْسِلُ ثَوْبِي الَّذِي عَلَى جَسَدِي حَتَّى يَتَّسِخَ وَلاَ أَدْهُنُ رَأْسِي حَتَّى يَشْعَثَ .