Mahabharata 1.69.22

अश्वमेधसहस्रं च सत्यं च तुलया धृतम्अश्वमेधसहस्राद्धि सत्यमेव विशिष्यते

aśvamedhasahasraṃ ca satyaṃ ca tulayā dhṛtamaśvamedhasahasrāddhi satyameva viśiṣyate

Our plain-language meaning of this verse is waiting for scholar review.