SB 6.19.23

āśiṣaḥ śirasādāya
 dvijaiḥ prītaiḥ samīritāḥ
praṇamya śirasā bhaktyā
 bhuñjīta tad-anujñayā
Word for word: 
āśiṣaḥ — blessings; śirasā — with the head; ādāya — accepting; dvijaiḥ — by the brāhmaṇas; prītaiḥ — who are pleased; samīritāḥ — spoken; praṇamya — after offering obeisances; śirasā — with the head; bhaktyā — with devotion; bhuñjīta — he should eat; tat-anujñayā — with their permission.
Translation: 
Thereafter, he should satisfy the brāhmaṇas. When the satisfied brāhmaṇas bestow their blessings, he should devotedly offer them respectful obeisances with his head, and with their permission he should take prasāda.