حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، قَالَ: ثَنَا صَفْوَانُ بْنُ عِيسَى، عَنِ الْحَسَنِ بْنِ ذَكْوَانَ، عَنْ مَرْوَانَ الْأَصْفَرِ، قَالَ: رَأَيْتُ ابْنَ عُمَرَ وأَنَاخَ رَاحِلَتَهُ مُسْتَقْبِلَ الْقِبْلَةِ ثُمَّ جَلَسَ يَبُولُ إِلَيْهَا فَقُلْتُ: أَبَا عَبْدِ الرَّحْمَنِ أَلَيْسَ قَدْ نُهِيَ عَنْ هَذَا؟ قَالَ: «بَلَى إِنَّمَا نُهِيَ عَنْ ذَلِكَ فِي الْفَضَاءِ فَإِذَا كَانَ بَيْنَكَ وَبَيْنَ الْقِبْلَةِ مَنْ يَسْتُرُكَ فَلَا بَأْسَ».
Marwan Asfar, may Allah have mercy on him, says: I saw Sayyiduna Abdullah bin Umar, may Allah be pleased with them both, he made his mount sit facing the Qiblah, then he turned towards it and sat down to urinate. I said: Abu Abdur Rahman! Has it not been prohibited (to urinate facing the Qiblah)? He replied: Yes! In open space it is prohibited, but if there is a barrier between you and the Qiblah, then there is no harm.