Waki said, And Dahhak Abu Ala narrated to me that he heard it from Abu Tamima, from Abu Musa, from the Prophet ﷺ, who said, "Whoever fasts perpetually, Hell will be made narrow for him like this," and he clenched his fist.
حدثنا وكيع قال ثنا شعبة عن قتادة عن أبي تميمة
ح قال وكيع وحدثني الضحاك أبو العلاء أنه سمعه من أبي تميمة عن أبي موسى عن النبي ﷺ قال من صام الدهر ضيقت عليه جهنم هكذا وقبض كفه
Its isnad is sahih. Abu Tamima is Tarif bin Mujalid, who is trustworthy, and his hadith is found in Bukhari. The hadith was narrated by Ibn Abu Shayba 3/78 and Bayhaqi 4/300, and Haythami said in 3/193, "Its narrators are the narrators of the Sahih."