عَنْ إِبْرَاهِيمَ بْنِ عَبْدِ اللَّهِ بْنِ قَارِظٍ قَالَ: مَرَرْتُ بِأَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ وَهُوَ يَتَوَضَّأُ فَقَالَ: أَتَدْرِي مِمَّ أَتَوَضَّأُ؟ مِنْ أَثْوَارِ أَقِطٍ أَكَلْتُهَا، إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقُولُ: ((تَوَضَّأُوا مِمَّا مَسَّتِ النَّارُ))
Abdullah bin Qariz says: I passed by Sayyiduna Abu Hurairah (may Allah be pleased with him) while he was performing ablution. He said to me: Do you know why I am performing ablution? Because of eating pieces of cheese, for the Messenger of Allah (peace and blessings be upon him) said: Perform ablution after eating anything that has been cooked over fire.