Ozzy Parham's family owned furniture factory was a medium-sized enterprise, and its total assets were probably not over one hundred million.
Yusuf Zuck did not directly agree to Ozzy's request for investment because he had always believed that "brothers are brothers, money is money," and he did not want money issues to lead to a fallout with a brother.
Perhaps Ozzy would not cause a fuss over money, but it wasn't Ozzy who made the decisions at home. At most, he was just a worker, and everything was determined by Ozzy's father.
In business, Yusuf had heard many precedents of partnerships, and without exception, they had all ended up parting ways on bad terms; very few people remained in partnerships for a lifetime.
When Yusuf said he needed to inspect and consider, he was actually making an excuse because he did not want to do business with Ozzy's family.
If Ozzy's family really was in financial trouble, he could lend them money, but he did not want to enter into a partnership.