Joining in rank through Iman
When the offspring of believers follow them in Iman, they are joined with their forefathers in rank, so the fathers find joy seeing their generations beside them in their stations.
وَالَّذِينَ آمَنُوا وَاتَّبَعَتْهُمْ ذُرِّيَّتُهُم بِإِيمَانٍ أَلْحَقْنَا بِهِمْ ذُرِّيَّتَهُمْ وَمَا أَلَتْنَاهُم مِّنْ عَمَلِهِم مِّن شَيْءٍ ۚ كُلُّ امْرِئٍ بِمَا كَسَبَ رَهِينٌ
“And those who believed and whose descendants followed them in Iman, We will join with them their descendants, and We will not deprive them of anything of their deeds. Every person is being held (responsible) in accordance with what he earned”.
When the offspring of believers follow them in Iman, they are joined with their forefathers in rank, so the fathers find joy seeing their generations beside them in their stations.
No one’s reward is diminished—neither forefathers nor descendants. This entails that those of lower rank are joined with those of higher rank so no deed’s reward is reduced.
Each person is bound by his deeds. There are no free passes: following in Iman is necessary, and individual actions are accounted for.
ذُرِّيَّة (Dhurriyah) stems from ذَرَّ—to scatter/spread (like seeds or dust). It signifies the extension of lineage across time: offspring, progeny, descendants. Here, ذُرِّيَّتَهُمْ includes future generations.
إِيمَانٍ in Nakirah with بِ allows multiple readings: for taqleel (lesser Iman) or tafkheem (greater Iman). Its undefined form keeps the scope open to any degree of Iman.
Because no action’s reward is reduced, those with lower rank are joined to those of higher rank. If descendants surpass forefathers, the forefathers are raised; if forefathers surpass, descendants are raised.
رَهِينٌ is understood as مَرْهُون—held as security/collateral. A person is detained by his deeds until reckoned: liberated by righteousness or detained by sin.
Those of lesser Iman are joined with their forefathers of greater Iman—so that no one’s reward is reduced and family reunion in stations is realized.
If descendants have greater Iman and deeds, forefathers are raised to their station—again ensuring no diminution of deeds for anyone.
Those who believed, and their descendants who followed them in Iman, are joined together in their ranks—bringing joy to the forefathers as they see their generations beside them.
He connects وَالَّذِينَ آمَنُوا وَاتَّبَعَتْهُمْ ذُرِّيَّتُهُم to the prior verse’s scene of couches arranged in rows—paired not only with Hoor ‘Een but with believers and their progeny. He then reads بِإِيمَانٍ أَلْحَقْنَا بِهِمْ ذُرِّيَّتَهُمْ as a new statement: “Due to Iman, We will join them with their descendants.”
Despite the joining of families, every person is held by what he has earned. Descendants’ joining is tied to their following the believers with Iman.
This, alongside “Eat and drink Hanee’an (in pleasure, comfort and ease) due to what you used to do”, shows that Paradise requires work and good deeds and cannot rely on others’ deeds—even though admission is ultimately by Allah’s mercy.
Following is conditioned by Iman; its open form embraces degrees of Iman, whether lesser or greater.
Joining preserves reward: either party may be raised so that joy and justice both stand.
Each person is bound as collateral by his actions—freed by righteousness, detained by sin.