Mahabharata 1.145.15
तदिदं ब्राह्मणस्यास्य दुःखमापतितं ध्रुवम्तत्रास्य यदि साहाय्यं कुर्याम सुकृतं भवेत्
tadidaṃ brāhmaṇasyāsya duḥkhamāpatitaṃ dhruvamtatrāsya yadi sāhāyyaṃ kuryāma sukṛtaṃ bhavet
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book