CLEAN : Hong Kong deputy announces leadership bid

The speaker announces their resignation from the position of Chief Secretary for Administration of Hong Kong, seeking approval from the Central People's Government. The sole reason for this resignation is to prepare for the upcoming chief executive election. The speaker expresses gratitude for serving the people of Hong Kong for over 36 years.

What did the individual request from the chief executive regarding their resignation?

What article of the basic law was referenced in the resignation process?