मित्र
Mitra is the god who presides over the anus of the cosmic Person. At SB 3.6.20: 'gudaM puMso vinirbhinnaM mitro lokesha Avishat / pAyunAMshena yenAsau visargaM pratipadyate' — when the anus of the Virat opened, Mitra entered, and by the lower faculty, His portion, excretion is attained. He is a distinct being from Vishvamitra, whose name merely contains the same string.
Śrīmad Bhāgavata Mahāpurāṇa 3.6.20 — Sanskrit Wikisource (pinned chapter page; Devanagari from the cross-validated transcription in validation/sanskrit_skandha3.json)
When the anus of the Virat opened, the lord of the world Mitra entered, and by the lower faculty, His portion, excretion is attained: 'gudaM puMso vinirbhinnaM mitro lokesha Avishat' (SB 3.6.20).
