Sunan An Nasai 322

أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، ‏‏‏‏‏‏قال:‏‏‏‏ حَدَّثَنَا عَبْدُ اللَّهِ، ‏‏‏‏‏‏عَنْ عَوْفٍ، ‏‏‏‏‏‏عَنْ أَبِي رَجَاءٍ، ‏‏‏‏‏‏قال:‏‏‏‏ سَمِعْتُ عِمْرَانَ بْنَ حُصَيْنٍ، ‏‏‏‏‏‏أَنْ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَأَى رَجُلًا مُعْتَزِلًا لَمْ يُصَلِّ مَعَ الْقَوْمِ، ‏‏‏‏‏‏فَقَالَ:‏‏‏‏ يَا فُلَانُ مَا مَنَعَكَ أَنْ تُصَلِّيَ مَعَ الْقَوْمِ ؟ فَقَالَ:‏‏‏‏ يَا رَسُولَ اللَّهِ، ‏‏‏‏‏‏أَصَابَتْنِي جَنَابَةٌ وَلَا مَاءَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ عَلَيْكَ بِالصَّعِيدِ فَإِنَّهُ يَكْفِيكَ .

It was narrated that Abu Raja' said: I heard 'Imran bin Husain (say) that the Prophet (ﷺ) saw a man who was by himself and did not pray with the people. He said: 'O So and so, what kept you from praying with the people?' He said: 'O Messenger of Allah, I have become Junub and there is no water.' He said: 'You should use earth for that will suffice you.'