Śrīmad-Bhāgavatam · Text 10.50.4
Who is speaking and story frame
अक्षौहिणीभिर्विंशत्या तिसृभिश्चापि संवृत: ।
यदुराजधानीं मथुरां न्यरुधत् सर्वतोदिशम् ॥ ४ ॥
akṣauhiṇībhir viṁśatyā
tisṛbhiś cāpi saṁvṛtaḥ
yadu-rājadhānīṁ mathurāṁ
nyarudhat sarvato diśam
With a force of twenty-three akṣauhiṇī divisions, he laid siege to the Yadu capital, Mathurā, on all sides.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.