Narrated 'Abdullah: (As above 827).
Vol: 007 Book: 072 Hadith: 828
Narrated An-Nu'man bin 'Bashir: The Prophet said, "Straighten your rows or Allah will alter your faces."
Vol: 001 Book: 011 Hadith: 685
Praise is to Allah Who has given me this food and sustained me with it though I was unable to doit and powerless.
Info: At-Tirmidhi, Abu Dawud, and Ibn Majah. See also Al-Albani, Sahih At-Tirmidhi 3/159.