Do not confuse this with standard "JH Naskh." The base version is much tighter. You specifically want the "Expanded Medium" variant. If you accidentally buy the regular weight, you lose the "breathing room" that makes this font special.
You can purchase/license JH Naskh Expanded Medium directly from (foundry) or through major font distributors like MyFonts or Fontspring . Prices vary based on license (Desktop, Web, or App). jh naskh expanded medium
Most standard Arabic fonts fall into two traps: Kufi (too rigid/modern) or Traditional Naskh (too fragile). JH Naskh Expanded Medium bridges this gap perfectly. Do not confuse this with standard "JH Naskh