Shaqiq says: Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) came to Sayyidah Umm Salamah (may Allah be pleased with her) and said: O Mother of the Believers! I fear that I will be ruined, for I am the wealthiest of Quraysh; I have sold a piece of my land for forty thousand dinars. Sayyidah Umm Salamah (may Allah be pleased with her) said: O my son! Spend (in the way of Allah)! After this the narrator mentioned the full narration.
Ahmad recorded it, and its narrators are the narrators of the Sahih; this narration has various routes, which have passed earlier.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 17843