Apastambadharmasutra 2.3.7.6

2.3.7.6

sa yat prātar madhyaṃdine sāyam iti [dadāti savanāny eva tāni [bhavanti /

When he gives food in the morning, at noon, and in the evening, (these gifts) are the Savanas (of that sacrifice offered to Pragâpati).