Sa'id (may Allah have mercy on him) narrates that Uthman and Ali (may Allah be pleased with them both) said: "Nothing breaks the prayer of a Muslim, but prevent the one passing in front as far as you are able."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3512
Hadith Gradingمحدثین:صحيح
Hadith Takhrij«صحيح۔ اخرجه الطحاوي في شرح المعاني 1/ 464»