Shiva Purana
अभिमंत्र्य च मन्त्रेण भक्ष्यभोज्यादिकानि च ॥ साधने ऽस्मिन्विशेषेण नित्यं भुञ्जीत वाग्यतः ॥ २० ॥
After chanting mantras, he offered food and drink to the demigods. In this particular meditation one should always eat with restraint of speech.
english translation
abhimaMtrya ca mantreNa bhakSyabhojyAdikAni ca ॥ sAdhane 'sminvizeSeNa nityaM bhuJjIta vAgyataH ॥ 20 ॥
hk transliteration by Sanscript