Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates this saying of the Prophet (peace and blessings be upon him): "When you load (your animals), place the load towards the back, for the hind leg is tethered and the foreleg is hanging."
Al-Bazzar, and al-Tabarani in al-Mu'jam al-Awsat, recorded it. Its chain contains Qays bin al-Rabi', whom Shu'bah and al-Thawri declared thiqah (trustworthy), and he has been criticised.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5314