Language:
كتاب الوتر
8  
Prayer (Kitab Al-Salat): Detailed Injunctions about Witr
(509)
Chapter: Regarding Supplication (Ad-Du'a)
(23)
باب الدُّعَاءِ
Sunan Abi Dawud 1491
The above mentioned tradition has also been transmitted in a similar manner by Ibn 'Abbas from the Messenger of Allah (ﷺ).
Grade: Sahih (Al-Albani)  صحيح   (الألباني) حكم   :
Reference : Sunan Abi Dawud 1491
In-book reference : Book 8, Hadith 76
English translation : Book 8, Hadith 1486