Maybe he smoked some?
Beginner => fullbody workout,
Why, two reasons,
first of all, a beginner isn't really familiar with the term overtraining,
second, he has to learn all basic movements.
My tip.
train 3 times a week, or once every two days if it's possible to rotate.
Workout, basics,
legs;
basic movement squat
rotate, deadlift (also back), form of legpress, leg-curl.
Back,
basic movement for back is actually rowing,
but you have to get familiar with pull-ups
so first try some pull-ups;
after that row, make a serious job of rowing with a barbell, also make sure somebody is watching you to correct you position. Rotate the second exercises, rowing with dumbells, lat-pulley, etc making use of a leverequipment is not bad.
Chest,
Slightly more variation here,
Benchpress, rotate the angle of the bench every trainingsday (incline flat decline) and the use of barbells or dumbells. Make once in a while use of cables and/or flyes. Do not exceed two exercises, and make sure you always have a variation of press in it.
Shoulders and arms,
one exercise every trainingsday and rotaote,
shoulder, press, back or front with barbell, dumbell. Do not perform the Arnold-press. It's the most ridiculous exercise I have ever seen.
Yeah you feel the lovely burning sensation, but it does jackshit.
Triceps;
rotate; one day dips, the other triceps extension;
biceps;
rotate; one day underhand pull-ups, the other curls;
Main goal of the first period is to get acquainted with the exercises.