Mahabharata 6.114.32

कारणद्वयमास्थाय नाहं योत्स्यामि पाण्डवैःअवध्यत्वाच्च पाण्डूनां स्त्रीभावाच्च शिखण्डिनः

kāraṇadvayamāsthāya nāhaṃ yotsyāmi pāṇḍavaiḥavadhyatvācca pāṇḍūnāṃ strībhāvācca śikhaṇḍinaḥ

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