Hadith 4:909
'Abd al-Wahhab al-Thaqafi narrated to us, from Khalid al-Hadhdha', who said: 'Asim said to me: I asked Jabir ibn Zayd, "What has reached you regarding one who breaks his fast for a day of Ramadan; what is upon him?" He said: "He should fast a day in its place, and perform an act of kindness along with that."
حدثنا عبد الوهاب الثقفي عن خالد الحذاء قال قال لي عاصم سألت جابر بن زيد ما بلغك فيمن أفطر يوما من رمضان ما عليه قال ليصم يوما مكانه ويصنع مع ذلك معروفا