Narrated by:'Amr bin 'Ata' said
It was narrated that 'Amr bin 'Ata' said:"I saw Sa'ib bin Yazid sniffing his garment, and I said: 'Why (are you doing) that?' He said: 'I heard the Messenger of Allah say: "No ablution (is needed) unless there is an odor or a sound."
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ عَيَّاشٍ، عَنْ عَبْدِ الْعَزِيزِ بْنِ عُبَيْدِ اللَّهِ، عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَطَاءٍ، قَالَ رَأَيْتُ السَّائِبَ بْنَ يَزِيدَ يَشَمُّ ثَوْبَهُ فَقُلْتُ مِمَّ ذَلِكَ قَالَ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَقُولُ " لاَ وُضُوءَ إِلاَّ مِنْ رِيحٍ أَوْ سَمَاعٍ " .
IbnMaja
The Book of Purification and its Sunnah • Hadith 516