Mahabharata 13.101.30

तीक्ष्णवीर्यास्तु भूतानां दुरालम्भाः सकण्टकाःरक्तभूयिष्ठवर्णाश्च कृष्णाश्चैवोपहारयेत्

tīkṣṇavīryāstu bhūtānāṃ durālambhāḥ sakaṇṭakāḥraktabhūyiṣṭhavarṇāśca kṛṣṇāścaivopahārayet

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