Oscar Robertson had 26,710 points when grabbing 7,000+ boards and recording 7,000+ assists in his career.

nba players with 22,000 points, 7,000 rebounds, 7,000 assists in career
Interpreted as:
NBA players with 22,000 or more points, 7,000 or more rebounds, 7,000 or more assists in career
PTS
RobertsonJames26.7k35.4k
NAMEGPPTSREBASTMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINSTLBLKTOVPF+/-
Oscar RobertsonOscar Robertson104026,7107,8049,88742.225.77.59.51.10.19.118.948.57.48.883.843,8867742,931
LeBron JamesLeBron James131335,4459,7709,71238.227.07.47.41.60.83.59.819.550.41.54.434.65.87.973.350,1702,0689854,6042,405+7117
StatMuse has season-level data for rebounds going back to the 1950-51 season.