This prophetic saying is narrated from Sayyiduna Ibn Umar, may Allah be pleased with them both, that envy (desire) is not permissible except towards two persons: one is the person whom Allah has granted the wealth of the Qur'an and he remains engaged in its recitation day and night; and the other is the person whom Allah has granted wealth and property, and he is made to spend it in the way of truth.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6403