It is narrated from Sayyidah Umm Sulaym (may Allah be pleased with her); she said: I was in one of the apartments of the wives of the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) was there, when a man came to him (peace and blessings be upon him) and complained to him of his need. He (peace and blessings be upon him) said: "Be patient. By Allah! The family of Muhammad has had nothing for seven days, and no fire has been lit under a cooking pot for them for three days. By Allah! If I were to ask Allah to turn all the mountains of Tihamah into gold, He would certainly do so."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21757