Does the reward of those accompanying a funeral procession diminish if they take payment for renting out cars?

The answer to the question of whether a mourner's work as a taxi driver affects the reward for accompanying a funeral procession is that accompanying a funeral procession and renting out cars are two separate matters. One who goes out as a renter of his car is not considered a mourner. However, for one who goes out as a mourner and then his car is rented, the reward for his accompanying the funeral procession is not lost. Nevertheless, accompanying a funeral procession with a pure intention, without mixing it with other worldly work, is better, just as the noble verse, "There is no blame upon you for seeking bounty from your Lord," indicates the permissibility of engaging in trade during Hajj while performing the worship, even though Hajj without trade is better due to its freedom from worldly impurities.