Mahabharata 8.18.61

शिखण्डिनं तु समरे भीष्ममृत्युं दुरासदम्हार्दिक्यो वारयामास स्मयन्निव मुहुर्मुहुः

śikhaṇḍinaṃ tu samare bhīṣmamṛtyuṃ durāsadamhārdikyo vārayāmāsa smayanniva muhurmuhuḥ

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