Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 36
Sanskrit:
न तद्दानं प्रशंसन्ति येन वृत्तिर्विपद्यते ।दानं यज्ञस्तप: कर्म लोके वृत्तिमतो यत: ॥ ३६ ॥
ITRANS:
na tad dānaṁ praśaṁsantiyena vṛttir vipadyatedānaṁ yajñas tapaḥ karmaloke vṛttimato yataḥ
Translation:
Learned scholars do not praise that charity which endangers one’s own livelihood. Charity, sacrifice, austerity and fruitive activities are possible for one who is competent to earn his livelihood properly. [They are not possible for one who cannot maintain himself.]