How does one achieve ‘ بِرّ الوالدين’, can you point me to any books/videos about this in English? How does one measure success in it? Is there more reward in breaking nafl salah for parents or completing it if they don’t mind waiting? I’m asking regarding to Sharh Riyaad al-Saaliheen, p. 302

Ustadh AbdulAziz al-Haqqan
Always ask 1 question rather than multiple ones. Ahadeeth al Alhlaq for sh Abdulrazzaq Albadir, I highly recommend it.