Abu Jahm had gifted the Prophet (may Allah's peace and blessings be upon him) an embellished colored garment. It was the Prophet's good manners to accept gifts in appreciation of the giver's thought. So he accepted the garment from Abu Jahm and prayed in it. As the garment was colored and embellished, it caught the Prophet's eye and distracted him from concentrating fully on his prayer. He therefore asked someone to return it to Abu Jahm and asked in return a plain garment with no color or embellishment, in order to reassure and not upset him through the return of his gift.