Mishkat al-Masabih 3 Purification كتاب الطهارة 212

وَعَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ قَالَ: كُنَّا نُصَلِّي مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَلَا نَتَوَضَّأ من الموطئ. رَوَاهُ التِّرْمِذِيّ

‘Abdallah b. Mas‘ud said that they used to pray with God’s messenger without performing ablution because of anything they had trodden on. Tirmidhi transmitted it.