Sunan Abi Dawud 1288
سنن أبي داود#1288HasanNarrated AbuUmamah: The Prophet (ﷺ) said: Prayer followed by a prayer with no idle talk between the two is recorded in Illiyyun
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan
Muhammad Muhyi Al-Din Abdul HamidHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 5:39