How many times is it recommended to send blessings upon the Prophet (peace be upon him) on Friday, and does "often" mean a specific number or not?

Praying upon the Prophet, peace and blessings be upon him, is an act of worship with immense reward. It has been authentically reported that there is an encouragement to do so frequently, especially on Friday. The "frequency" for which no specific legal limit has been established is determined by common practice. Therefore, it is advisable to pray upon the Prophet, peace and blessings be upon him, frequently at all times, and especially on Friday, without adhering to a specific number. For the more one does, the greater the reward and the closer one is to attaining Allah's pleasure.