Some of our companions have argued in this matter from the general statement of the Prophet (peace and blessings be upon him): "He should not turn away (from the prayer) until he hears a sound or finds a smell."
And they have also argued from his general statement in the hadith of Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him): "Nothing breaks the prayer, and repel (whoever passes in front of you) as much as you can."
It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Ablution is only required because of a sound or a smell."
(b) Arguing from this hadith, or from the narration of Sayyiduna Abu Sa'id (may Allah be pleased with him), in this matter is not valid.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1052