Archbishop Jackson ole Sapit, of the Anglican Church of Kenya, on Tuesday said Kenyan churches should end the "hype" with which they accept donations from politicians.
Archbishop Sapit said: "Let us not hype this thing of harambees and guests of honour because that is where, as the church, we go wrong.
"Let us not allow harambee money to become a subtle way of sanitising corrupt leaders," he said after a meeting of the Multisectoral Initiative Against Corruption (MSIAC) in Nairobi.
There have been concerns about churches receiving money said to be proceeds of corruption and money laundering during fundraisers.
Mr Sapit said the Anglican Church will rethink the matter of letting politicians hold fundraisers in sanctuaries.
In July last year, Archbishop Sapit received Sh8 million cash donation from the Deputy President William Ruto, with a further pledge of another Sh2 million.
The harambee was held at All Saints Cathedral in Nairobi. It was for the purpose of building a children's centre at the church.