When any one of you is invited to a feast, he should accept it. He may eat if he likes, or he may abandon (eating) if he likes. Ibn Mathanni did not make mention of the word" feast".  

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا دُعِيَ أَحَدُكُمْ إِلَى طَعَامٍ فَلْيُجِبْ فَإِنْ شَاءَ طَعِمَ وَإِنْ شَاءَ تَرَكَ وَلَمْ يَذْكُرِ ابْنُ الْمُثَنَّى إِلَى طَعَامٍ  

The Prophet said: "When one of you is invited to eat then let him respond, if he is fasting then let him pray." Meaning: supplicate.  

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا دُعِيَ أَحَدُكُمْ إِلَى طَعَامٍ فَلْيُجِبْ فَإِنْ كَانَ صَائِمًا فَلْيُصَلِّ يَعْنِي الدُّعَاءَ  

“Whoever is invited to eat when he is fasting, let him accept the invitation; and if he wants to let him eat, and if he wants let him not eat.”  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ دُعِيَ إِلَى طَعَامٍ وَهُوَ صَائِمٌ فَلْيُجِبْ فَإِنْ شَاءَ طَعِمَ وَإِنْ شَاءَ تَرَكَ  

when one of you is invited to a meal, he must accept. If he wishes he may eat, but if he wishes(to leave), he may leave. (Using translation from Abū Dāʾūd 3740)   

قَالَ رَسُولُ اللهِ ﷺ إِذَا دُعِيَ أَحَدُكُمْ فَلْيُجِبْ فَإِنْ شَاءَ طَعِمَ وَإِنْ شَاءَ تَرَكَ  

[Machine] The Messenger of Allah ﷺ said: "When someone invites you, respond to the invitation. If you wish, you may attend, and if you wish, you may decline."  

قَالَ رَسُولُ اللَّهِ ﷺ «إِذَا دُعِيَ أَحَدُكُمْ فَلْيُجِبْ فَإِنْ شَاءَ أَكَلَ وَإِنْ شَاءَ تَرَكَ»  

[Machine] The Messenger of Allah ﷺ said, "When any of you is invited, let him accept, if he wishes he may eat, and if he wishes he may leave."  

قَالَ رَسُولُ اللهِ ﷺ «إِذَا دُعِيَ أَحَدُكُمْ فَلْيُجِبْ فَإِنْ شَاءَ طَعِمَ وَإِنْ شَاءَ تَرَكَ»  

The Prophet said: "When one of you is invited to eat then let him respond, if he is fasting then let him pray." Meaning: supplicate. (Using translation from Tirmidhī 780)   

"إِذا دُعِيَ أحدُكُمْ إلى طعامٍ فليُجبْ وإن كانَ صائمًا" .