Srimad Bhagavatam Canto 08, Chapter 16, Text 50

SB 8.16.50

trayodasyam atho visnoh
 snapanam pañcakair vibhoh
karayec chastra-drstena
 vidhina vidhi-kovidaih
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Thereafter, following the directions of the sastra with help from brahmanas who know the sastra, on the thirteenth day of the moon one should bathe Lord Visnu with five substances [milk, yogurt, ghee, sugar and honey].
Srimad Bhagavatam Canto 08, Chapter 16, Text 49
Srimad Bhagavatam Canto 08, Chapter 16, Text 51-52