Mahabharata 3.80.75

तत्राश्रमो वसिष्ठस्य त्रिषु लोकेषु विश्रुतःतत्रोष्य रजनीमेकां गोसहस्रफलं लभेत्

tatrāśramo vasiṣṭhasya triṣu lokeṣu viśrutaḥtatroṣya rajanīmekāṃ gosahasraphalaṃ labhet

Our plain-language meaning of this verse is waiting for scholar review.