Hadithcore
Hadith #2104120

And in Abu Dawud:

"He said, 'Has Dhul-Yadain spoken the truth?' Then they said 'Yes' with gesture".

وَلِأَبِي دَاوُدَ , فَقَالَ : { أَصَدَقَ ذُو اَلْيَدَيْنِ ? " فَأَوْمَئُوا : أَيْ نَعَمْ } .‏ [1]‏

References2 variants
Sunnah.com reference
Book 2, Hadith 229
Arabic/English book reference
Book 2, Hadith 0