In the Commentary to the Rathaviníta Sutta (MA.i.361) mention is made of a Kilesiya Sutta in which the Buddha preached Bhagu Thera the virtues of solitude. I have not been able to trace a sutta of this name. The Theragáthá Commentary (ThagA.i.380) says that the Buddha visited Bhagu at Bálakalonakagáma after his attainment of arahantship to congratulate him on his solitude (ekaviháram anumoditum). The Samyutta Commentary (SA.ii.222) goes further and says that the Buddha visited him on the way from Kosambí to Pácínavamsadáya, and that during this visit the Buddha preached to him the advantages of solitude (ekacáraváse ánisamsam) for the whole day after the midday meal and the whole night (sakalapacchábhattañ c'eva tiyámarattiñ ca). The Vinaya passage (Vin.i.350), however, which records this visit does not make mention of any such special sermon, but merely says that the Buddha inquired after Bhagu's health and wellbeing. v.l. Sankilesiya Sutta.