أَخْبَرَنَا أَبُو نُعَيْمٍ ، حَدَّثَنَا هِشَامٌ ، عَنْ قَتَادَةَ ، عَنْ الْحَسَنِ ، عَنْ أَبِي رَافِعٍ ، عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللهُ عَنْهُ، عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ :" إِذَا جَلَسَ بَيْنَ شُعَبِهَا الْأَرْبَعِ، ثُمَّ جَهَدَهَا، فَقَدْ وَجَبَ الْغُسْلُ "

Abu Nu`aym told us, Hisham told us, on the authority of Qatada, on the authority of Al-Hasan, on the authority of Abu Rafi’, on the authority of Abu Hurairah, may God be pleased with him, on the authority of the Prophet May God’s prayers and peace be upon him, he said: “If he sits between its four branches, and then exerts effort on it, then it is obligatory to wash.”