I use chants for myself but maybe your husband can benefit as well:
Wiffs of smoke
Go up to the sky
But the Earth demands balance
& bad habits breaks
The Earth opens its mouth
& lo and behold
No more smoke
No pipe no cigarette
In sight
In mind
It’s all left behind.
No more troubles tribulations
Or addictions.
No more hardships
Or afflictions.
All is roses
& benedictions.
I would say to chant it twice a day:
When he wakes up &
Goes to bed.
Have a great week 