Mahabharata 13.110.37

अश्वमेधस्य यज्ञस्य फलं प्राप्नोति मानवःपुण्डरीकप्रकाशं च विमानं लभते नरः

aśvamedhasya yajñasya phalaṃ prāpnoti mānavaḥpuṇḍarīkaprakāśaṃ ca vimānaṃ labhate naraḥ

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