CC Madhya 25.47

“ācāryera āgraha — ‘advaita-vāda’ sthāpite
tāte sūtrārtha vyākhyā kare anya rīte
Word for word: 
ācāryera — of Śaṅkarācārya; āgraha — the eagerness; advaita-vāda — monism; sthāpite — to establish; tāte — for that reason; sūtra-artha — the meaning of the Brahma-sūtra, or Vedānta philosophy; vyākhyā — explanation; kare — does; anya rīte — in a different way.
Translation: 
Prakāśānanda Sarasvatī said, “Śaṅkarācārya was very eager to establish the philosophy of monism. Therefore he explained the Vedānta-sūtra, or Vedānta philosophy, in a different way to support monistic philosophy.