Mr Buhari made the request on Tuesday during a virtual meeting with US Secretary of State, Antony Blinken.
The prosecution said he reasonably ought to have known that N322million out of the purchase sum formed part of proceeds of an unlawful act.
Works Minister, Babatunde Fashola, reaffirmed this on Sunday at a forum of the News Agency of Nigeria (NAN) in Abuja.
It also expressed support for the reform of the police to strengthen their capacity.
He urged all state governments, traditional and religious leaders, to take the lead in the mobilization effort within their environment and spheres of influence.
Mr Amaechi, over the weekend, in two separate audios, was reported to have spoken ill of the government of which he serves.
Despite the disbandment, protests continued with many expressing doubts about government sincerity having done so thrice earlier with no action thereafter.
When he finally appeared at the third sitting he accused court workers of receiving bribery to favour his estranged wife.
Nigerians who rebuffed the ban of the social networking site resorted to the use of Virtual Private Network (VPN) to access the site.