Bhagavad Gita 17.22
अदेशकाले यद्दानमपात्रेभ्यश्च दीयते। असत्कृतमवज्ञातं तत्तामसमुदाहृतम्।।17.22।।
adeśakāle yaddānamapātrebhyaśca dīyate| asatkṛtamavajñātaṃ tattāmasamudāhṛtam||17.22||
adeshakale yaddanamapatrebhyashca diyate asatkritamavajnatam tattamasamudahritam17.22
Meaning
That gift which is given at an improper time and place, to unworthy persons, without respect, or with contempt — that is declared to be tamasic charity.
जो दान बिना सत्कार किये, अथवा तिरस्कारपूर्वक, अयोग्य देशकाल में, कुपात्रों के लिए दिया जाता है, वह दान तामस माना गया है।
This is verse 22 of 28 in Chapter 17 (Shraddhatraya Vibhaga Yoga) of the Bhagavad Gita.