Raise capital of proprietor

Yes clubbing provisions will apply if gift is received from spouse. The profit derived from properietorship business will be clubbed proportionately in the hands of spouse if some  capital is already invested in business in ratio of gifted amount bears to the total capital  of business.

Therefore it is better to obtain gift from father as it will have no gift tax implication u/s 56 and no clubbing provisions will be applicable on profits earned from business.