Suppose Ahmad buys cloth for Rs 30,000.
1. He has not yet received it; he may not resell it.
2. After legally effective possession, that specific obstacle is removed, assuming other sale conditions are met.
3. The seller remits Rs 2,000, leaving a price of Rs 28,000.
4. The immediately due price is given a definite ten-day extension.
One transaction can raise distinct questions of title, possession, outstanding price and maturity.