न मांसभक्षणे दोषो न मद्ये न च मैथुने ।
प्रवृत्तिरेषा भूतानां निवृत्तिस्तु महाफला ॥

There is no sin in the eating of meat, nor in wine, nor in sexual intercourse. Such is the natural way of living beings; but abstention is conducive to great rewards

Source is heart attack 2 RW

Same person says this

स्वमांसं परमांसेन यो वर्धयितुमिच्छति ।
अनभ्यर्च्य पितॄन् देवांस्ततोऽन्यो नास्त्यपुण्यकृत्

If a man, without worshipping the gods and Pitṛs, seeks to increase his own flesh by the flesh of others,there is no sinner greater than that person