“With one salam” means a continuous prayer begun with one opening takbir and concluded with the salam after the stated rakahs.
For example, eight daytime nafl rakahs may be separated as four units of two or two units of four. Eight consecutive daytime rakahs under a single opening and closing are treated as disliked in the source.
Opening interactive controls...
Voluntary Prayers: Regular Sunnahs, Nawafil and Juristic Differences
“With one salam” means a continuous prayer begun with one opening takbir and concluded with the salam after the stated rakahs.
For example, eight daytime nafl rakahs may be separated as four units of two or two units of four. Eight consecutive daytime rakahs under a single opening and closing are treated as disliked in the source.