Mahabharata 13.57.41

13.57.41

pitāmahasyānucaro vīraśāyī bhavennaraḥ |
nādhikaṃ vidyate tasmādityāhuḥ paramarṣayaḥ || 41 ||

He who gives unto a Brahmana a good bed perfumed with fragrant scents, overlaid with an excellent sheet, and equipped with pillows, wins without any effort on his part a beautiful wife, belonging to a high family and of agreeable manners. The man who takes to a hero's bed on the field of battle becomes the equal of the Grandsire Brahman himself. There is no end higher than this. Even this is what the great Rishis have declared.'