Mitta Sutta SN 47.48  SN v 189

“Bhikkhus, those for whom you have compassion and who think you should be heeded—whether friends or colleagues, relatives or kinsmen—these you should exhort, settle, and establish in the development of the four establishments of mindfulness.

“What four? Here, bhikkhu, a bhikkhu dwells contemplating the body in the body, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world.

Dwells contemplating feelings in feelings, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world.

Dwells contemplating mind in mind, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world.

Dwells contemplating phenomena in phenomena, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world.

“Bhikkhus, those for whom you have compassion and who think you should be heeded—whether friends or colleagues, relatives or kinsmen—these you should exhort, settle, and establish in the development of these four establishments of mindfulness.”

Source: https://suttacentral.net/sn47.48 Mitta Sutta SN 47.48  SN v 189