Anas said:The iqama* had been uttered and God’s Messenger faced us and said, “Make your rows straight and stand close together, for l can see you behind my back.” * A repetition of the words of the call to prayer after the worshippers have taken their places with the addition of a statement that the time of prayer has come. Bukhari transmitted it. In the version given by Bukhari and Muslim he said, “Make the rows perfect, for I can see you behind my back."
Hadith Referenceمشكوة المصابيح / كتاب الصلاة / 1086
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:رواه البخاري (719)
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «رواه البخاري (719) ه أتموا الصفوف، رواه مسلم (434، ترقيم دارالسلام: 976) واللفظ له و رواه البخاري (718) بلفظ: ’’أقيموا الصفوف‘‘.»