Nafi' relates that Ibn Umar (may Allah be pleased with them both) said concerning the saying of Allah Almighty: "And give its due on the day of its harvest." [Surah al-An'am: 141]: People used to give to those who asked something besides zakah as well; however, Hafs did not mention these words ("besides zakah").
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7505